diff options
| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:35:18 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:35:18 +0000 |
| commit | b750101eb236130cf056c675997decbac904cc49 (patch) | |
| tree | a5df1a06754bdd014cb975c051c83b01c9a97532 /src/network/networkctl.c | |
| parent | Initial commit. (diff) | |
| download | systemd-b750101eb236130cf056c675997decbac904cc49.tar.xz systemd-b750101eb236130cf056c675997decbac904cc49.zip | |
Adding upstream version 252.22.upstream/252.22upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
| -rw-r--r-- | src/network/networkctl.c | 2965 |
1 files changed, 2965 insertions, 0 deletions
diff --git a/src/network/networkctl.c b/src/network/networkctl.c new file mode 100644 index 0000000..f593aa1 --- /dev/null +++ b/src/network/networkctl.c @@ -0,0 +1,2965 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ + +#include <arpa/inet.h> +#include <getopt.h> +#include <linux/if_addrlabel.h> +#include <net/if.h> +#include <stdbool.h> +#include <sys/stat.h> +#include <sys/types.h> +#include <unistd.h> +#include <linux/if_bridge.h> +#include <linux/if_tunnel.h> + +#include "sd-bus.h" +#include "sd-device.h" +#include "sd-dhcp-client.h" +#include "sd-hwdb.h" +#include "sd-lldp-rx.h" +#include "sd-netlink.h" +#include "sd-network.h" + +#include "alloc-util.h" +#include "bond-util.h" +#include "bridge-util.h" +#include "bus-common-errors.h" +#include "bus-error.h" +#include "bus-locator.h" +#include "device-util.h" +#include "escape.h" +#include "ether-addr-util.h" +#include "ethtool-util.h" +#include "fd-util.h" +#include "format-table.h" +#include "format-util.h" +#include "geneve-util.h" +#include "glob-util.h" +#include "hwdb-util.h" +#include "ipvlan-util.h" +#include "local-addresses.h" +#include "locale-util.h" +#include "logs-show.h" +#include "macro.h" +#include "macvlan-util.h" +#include "main-func.h" +#include "netif-util.h" +#include "netlink-util.h" +#include "network-internal.h" +#include "network-util.h" +#include "pager.h" +#include "parse-argument.h" +#include "parse-util.h" +#include "pretty-print.h" +#include "set.h" +#include "sigbus.h" +#include "socket-netlink.h" +#include "socket-util.h" +#include "sort-util.h" +#include "sparse-endian.h" +#include "stdio-util.h" +#include "string-table.h" +#include "string-util.h" +#include "strv.h" +#include "strxcpyx.h" +#include "terminal-util.h" +#include "unit-def.h" +#include "verbs.h" +#include "wifi-util.h" + +/* Kernel defines MODULE_NAME_LEN as 64 - sizeof(unsigned long). So, 64 is enough. */ +#define NETDEV_KIND_MAX 64 + +/* use 128 kB for receive socket kernel queue, we shouldn't need more here */ +#define RCVBUF_SIZE (128*1024) + +static PagerFlags arg_pager_flags = 0; +static bool arg_legend = true; +static bool arg_all = false; +static bool arg_stats = false; +static bool arg_full = false; +static unsigned arg_lines = 10; +static JsonFormatFlags arg_json_format_flags = JSON_FORMAT_OFF; + +static int get_description(sd_bus *bus, JsonVariant **ret) { + _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; + _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; + const char *text = NULL; + int r; + + r = bus_call_method(bus, bus_network_mgr, "Describe", &error, &reply, NULL); + if (r < 0) + return log_error_errno(r, "Failed to get description: %s", bus_error_message(&error, r)); + + r = sd_bus_message_read(reply, "s", &text); + if (r < 0) + return bus_log_parse_error(r); + + r = json_parse(text, 0, ret, NULL, NULL); + if (r < 0) + return log_error_errno(r, "Failed to parse JSON: %m"); + + return 0; +} + +static int dump_manager_description(sd_bus *bus) { + _cleanup_(json_variant_unrefp) JsonVariant *v = NULL; + int r; + + r = get_description(bus, &v); + if (r < 0) + return r; + + json_variant_dump(v, arg_json_format_flags, NULL, NULL); + return 0; +} + +static int dump_link_description(sd_bus *bus, char **patterns) { + _cleanup_(json_variant_unrefp) JsonVariant *v = NULL; + _cleanup_free_ bool *matched_patterns = NULL; + JsonVariant *i; + size_t c = 0; + int r; + + r = get_description(bus, &v); + if (r < 0) + return r; + + matched_patterns = new0(bool, strv_length(patterns)); + if (!matched_patterns) + return log_oom(); + + JSON_VARIANT_ARRAY_FOREACH(i, json_variant_by_key(v, "Interfaces")) { + char ifindex_str[DECIMAL_STR_MAX(int64_t)]; + const char *name; + int64_t index; + size_t pos; + + name = json_variant_string(json_variant_by_key(i, "Name")); + index = json_variant_integer(json_variant_by_key(i, "Index")); + xsprintf(ifindex_str, "%" PRIi64, index); + + if (!strv_fnmatch_full(patterns, ifindex_str, 0, &pos) && + !strv_fnmatch_full(patterns, name, 0, &pos)) { + bool match = false; + JsonVariant *a; + + JSON_VARIANT_ARRAY_FOREACH(a, json_variant_by_key(i, "AlternativeNames")) + if (strv_fnmatch_full(patterns, json_variant_string(a), 0, &pos)) { + match = true; + break; + } + + if (!match) + continue; + } + + matched_patterns[pos] = true; + json_variant_dump(i, arg_json_format_flags, NULL, NULL); + c++; + } + + /* Look if we matched all our arguments that are not globs. It is OK for a glob to match + * nothing, but not for an exact argument. */ + for (size_t pos = 0; pos < strv_length(patterns); pos++) { + if (matched_patterns[pos]) + continue; + + if (string_is_glob(patterns[pos])) + log_debug("Pattern \"%s\" doesn't match any interface, ignoring.", + patterns[pos]); + else + return log_error_errno(SYNTHETIC_ERRNO(ENODEV), + "Interface \"%s\" not found.", patterns[pos]); + } + + if (c == 0) + log_warning("No interfaces matched."); + + return 0; +} + +static void operational_state_to_color(const char *name, const char *state, const char **on, const char **off) { + if (STRPTR_IN_SET(state, "routable", "enslaved") || + (streq_ptr(name, "lo") && streq_ptr(state, "carrier"))) { + if (on) + *on = ansi_highlight_green(); + if (off) + *off = ansi_normal(); + } else if (streq_ptr(state, "degraded")) { + if (on) + *on = ansi_highlight_yellow(); + if (off) + *off = ansi_normal(); + } else { + if (on) + *on = ""; + if (off) + *off = ""; + } +} + +static void setup_state_to_color(const char *state, const char **on, const char **off) { + if (streq_ptr(state, "configured")) { + if (on) + *on = ansi_highlight_green(); + if (off) + *off = ansi_normal(); + } else if (streq_ptr(state, "configuring")) { + if (on) + *on = ansi_highlight_yellow(); + if (off) + *off = ansi_normal(); + } else if (STRPTR_IN_SET(state, "failed", "linger")) { + if (on) + *on = ansi_highlight_red(); + if (off) + *off = ansi_normal(); + } else { + if (on) + *on = ""; + if (off) + *off = ""; + } +} + +static void online_state_to_color(const char *state, const char **on, const char **off) { + if (streq_ptr(state, "online")) { + if (on) + *on = ansi_highlight_green(); + if (off) + *off = ansi_normal(); + } else if (streq_ptr(state, "partial")) { + if (on) + *on = ansi_highlight_yellow(); + if (off) + *off = ansi_normal(); + } else { + if (on) + *on = ""; + if (off) + *off = ""; + } +} + +typedef struct VxLanInfo { + uint32_t vni; + uint32_t link; + + int local_family; + int group_family; + + union in_addr_union local; + union in_addr_union group; + + uint16_t dest_port; + + uint8_t proxy; + uint8_t learning; + uint8_t rsc; + uint8_t l2miss; + uint8_t l3miss; + uint8_t tos; + uint8_t ttl; +} VxLanInfo; + +typedef struct LinkInfo { + char name[IFNAMSIZ+1]; + char *netdev_kind; + sd_device *sd_device; + int ifindex; + unsigned short iftype; + struct hw_addr_data hw_address; + struct hw_addr_data permanent_hw_address; + uint32_t master; + uint32_t mtu; + uint32_t min_mtu; + uint32_t max_mtu; + uint32_t tx_queues; + uint32_t rx_queues; + uint8_t addr_gen_mode; + char *qdisc; + char **alternative_names; + + union { + struct rtnl_link_stats64 stats64; + struct rtnl_link_stats stats; + }; + + uint64_t tx_bitrate; + uint64_t rx_bitrate; + + /* bridge info */ + uint32_t forward_delay; + uint32_t hello_time; + uint32_t max_age; + uint32_t ageing_time; + uint32_t stp_state; + uint32_t cost; + uint16_t priority; + uint8_t mcast_igmp_version; + uint8_t port_state; + + /* vxlan info */ + VxLanInfo vxlan_info; + + /* vlan info */ + uint16_t vlan_id; + + /* tunnel info */ + uint8_t ttl; + uint8_t tos; + uint8_t inherit; + uint8_t df; + uint8_t csum; + uint8_t csum6_tx; + uint8_t csum6_rx; + uint16_t tunnel_port; + uint32_t vni; + uint32_t label; + union in_addr_union local; + union in_addr_union remote; + + /* bonding info */ + uint8_t mode; + uint32_t miimon; + uint32_t updelay; + uint32_t downdelay; + + /* macvlan and macvtap info */ + uint32_t macvlan_mode; + + /* ipvlan info */ + uint16_t ipvlan_mode; + uint16_t ipvlan_flags; + + /* ethtool info */ + int autonegotiation; + uint64_t speed; + Duplex duplex; + NetDevPort port; + + /* wlan info */ + enum nl80211_iftype wlan_iftype; + char *ssid; + struct ether_addr bssid; + + bool has_hw_address:1; + bool has_permanent_hw_address:1; + bool has_tx_queues:1; + bool has_rx_queues:1; + bool has_stats64:1; + bool has_stats:1; + bool has_bitrates:1; + bool has_ethtool_link_info:1; + bool has_wlan_link_info:1; + bool has_tunnel_ipv4:1; + bool has_ipv6_address_generation_mode:1; + + bool needs_freeing:1; +} LinkInfo; + +static int link_info_compare(const LinkInfo *a, const LinkInfo *b) { + return CMP(a->ifindex, b->ifindex); +} + +static LinkInfo* link_info_array_free(LinkInfo *array) { + for (unsigned i = 0; array && array[i].needs_freeing; i++) { + sd_device_unref(array[i].sd_device); + free(array[i].netdev_kind); + free(array[i].ssid); + free(array[i].qdisc); + strv_free(array[i].alternative_names); + } + + return mfree(array); +} +DEFINE_TRIVIAL_CLEANUP_FUNC(LinkInfo*, link_info_array_free); + +static int decode_netdev(sd_netlink_message *m, LinkInfo *info) { + int r; + + assert(m); + assert(info); + + r = sd_netlink_message_enter_container(m, IFLA_LINKINFO); + if (r < 0) + return r; + + r = sd_netlink_message_read_string_strdup(m, IFLA_INFO_KIND, &info->netdev_kind); + if (r < 0) { + (void) sd_netlink_message_exit_container(m); + return r; + } + + r = sd_netlink_message_enter_container(m, IFLA_INFO_DATA); + if (r < 0) + return r; + + if (streq(info->netdev_kind, "bridge")) { + (void) sd_netlink_message_read_u32(m, IFLA_BR_FORWARD_DELAY, &info->forward_delay); + (void) sd_netlink_message_read_u32(m, IFLA_BR_HELLO_TIME, &info->hello_time); + (void) sd_netlink_message_read_u32(m, IFLA_BR_MAX_AGE, &info->max_age); + (void) sd_netlink_message_read_u32(m, IFLA_BR_AGEING_TIME, &info->ageing_time); + (void) sd_netlink_message_read_u32(m, IFLA_BR_STP_STATE, &info->stp_state); + (void) sd_netlink_message_read_u32(m, IFLA_BRPORT_COST, &info->cost); + (void) sd_netlink_message_read_u16(m, IFLA_BR_PRIORITY, &info->priority); + (void) sd_netlink_message_read_u8(m, IFLA_BR_MCAST_IGMP_VERSION, &info->mcast_igmp_version); + (void) sd_netlink_message_read_u8(m, IFLA_BRPORT_STATE, &info->port_state); + } if (streq(info->netdev_kind, "bond")) { + (void) sd_netlink_message_read_u8(m, IFLA_BOND_MODE, &info->mode); + (void) sd_netlink_message_read_u32(m, IFLA_BOND_MIIMON, &info->miimon); + (void) sd_netlink_message_read_u32(m, IFLA_BOND_DOWNDELAY, &info->downdelay); + (void) sd_netlink_message_read_u32(m, IFLA_BOND_UPDELAY, &info->updelay); + } else if (streq(info->netdev_kind, "vxlan")) { + (void) sd_netlink_message_read_u32(m, IFLA_VXLAN_ID, &info->vxlan_info.vni); + + r = sd_netlink_message_read_in_addr(m, IFLA_VXLAN_GROUP, &info->vxlan_info.group.in); + if (r >= 0) + info->vxlan_info.group_family = AF_INET; + else { + r = sd_netlink_message_read_in6_addr(m, IFLA_VXLAN_GROUP6, &info->vxlan_info.group.in6); + if (r >= 0) + info->vxlan_info.group_family = AF_INET6; + } + + r = sd_netlink_message_read_in_addr(m, IFLA_VXLAN_LOCAL, &info->vxlan_info.local.in); + if (r >= 0) + info->vxlan_info.local_family = AF_INET; + else { + r = sd_netlink_message_read_in6_addr(m, IFLA_VXLAN_LOCAL6, &info->vxlan_info.local.in6); + if (r >= 0) + info->vxlan_info.local_family = AF_INET6; + } + + (void) sd_netlink_message_read_u32(m, IFLA_VXLAN_LINK, &info->vxlan_info.link); + (void) sd_netlink_message_read_u16(m, IFLA_VXLAN_PORT, &info->vxlan_info.dest_port); + (void) sd_netlink_message_read_u8(m, IFLA_VXLAN_PROXY, &info->vxlan_info.proxy); + (void) sd_netlink_message_read_u8(m, IFLA_VXLAN_LEARNING, &info->vxlan_info.learning); + (void) sd_netlink_message_read_u8(m, IFLA_VXLAN_RSC, &info->vxlan_info.rsc); + (void) sd_netlink_message_read_u8(m, IFLA_VXLAN_L3MISS, &info->vxlan_info.l3miss); + (void) sd_netlink_message_read_u8(m, IFLA_VXLAN_L2MISS, &info->vxlan_info.l2miss); + (void) sd_netlink_message_read_u8(m, IFLA_VXLAN_TOS, &info->vxlan_info.tos); + (void) sd_netlink_message_read_u8(m, IFLA_VXLAN_TTL, &info->vxlan_info.ttl); + } else if (streq(info->netdev_kind, "vlan")) + (void) sd_netlink_message_read_u16(m, IFLA_VLAN_ID, &info->vlan_id); + else if (STR_IN_SET(info->netdev_kind, "ipip", "sit")) { + (void) sd_netlink_message_read_in_addr(m, IFLA_IPTUN_LOCAL, &info->local.in); + (void) sd_netlink_message_read_in_addr(m, IFLA_IPTUN_REMOTE, &info->remote.in); + } else if (streq(info->netdev_kind, "geneve")) { + (void) sd_netlink_message_read_u32(m, IFLA_GENEVE_ID, &info->vni); + + r = sd_netlink_message_read_in_addr(m, IFLA_GENEVE_REMOTE, &info->remote.in); + if (r >= 0) + info->has_tunnel_ipv4 = true; + else + (void) sd_netlink_message_read_in6_addr(m, IFLA_GENEVE_REMOTE6, &info->remote.in6); + + (void) sd_netlink_message_read_u8(m, IFLA_GENEVE_TTL, &info->ttl); + (void) sd_netlink_message_read_u8(m, IFLA_GENEVE_TTL_INHERIT, &info->inherit); + (void) sd_netlink_message_read_u8(m, IFLA_GENEVE_TOS, &info->tos); + (void) sd_netlink_message_read_u8(m, IFLA_GENEVE_DF, &info->df); + (void) sd_netlink_message_read_u8(m, IFLA_GENEVE_UDP_CSUM, &info->csum); + (void) sd_netlink_message_read_u8(m, IFLA_GENEVE_UDP_ZERO_CSUM6_TX, &info->csum6_tx); + (void) sd_netlink_message_read_u8(m, IFLA_GENEVE_UDP_ZERO_CSUM6_RX, &info->csum6_rx); + (void) sd_netlink_message_read_u16(m, IFLA_GENEVE_PORT, &info->tunnel_port); + (void) sd_netlink_message_read_u32(m, IFLA_GENEVE_LABEL, &info->label); + } else if (STR_IN_SET(info->netdev_kind, "gre", "gretap", "erspan")) { + (void) sd_netlink_message_read_in_addr(m, IFLA_GRE_LOCAL, &info->local.in); + (void) sd_netlink_message_read_in_addr(m, IFLA_GRE_REMOTE, &info->remote.in); + } else if (STR_IN_SET(info->netdev_kind, "ip6gre", "ip6gretap", "ip6erspan")) { + (void) sd_netlink_message_read_in6_addr(m, IFLA_GRE_LOCAL, &info->local.in6); + (void) sd_netlink_message_read_in6_addr(m, IFLA_GRE_REMOTE, &info->remote.in6); + } else if (streq(info->netdev_kind, "vti")) { + (void) sd_netlink_message_read_in_addr(m, IFLA_VTI_LOCAL, &info->local.in); + (void) sd_netlink_message_read_in_addr(m, IFLA_VTI_REMOTE, &info->remote.in); + } else if (streq(info->netdev_kind, "vti6")) { + (void) sd_netlink_message_read_in6_addr(m, IFLA_VTI_LOCAL, &info->local.in6); + (void) sd_netlink_message_read_in6_addr(m, IFLA_VTI_REMOTE, &info->remote.in6); + } else if (STR_IN_SET(info->netdev_kind, "macvlan", "macvtap")) + (void) sd_netlink_message_read_u32(m, IFLA_MACVLAN_MODE, &info->macvlan_mode); + else if (streq(info->netdev_kind, "ipvlan")) { + (void) sd_netlink_message_read_u16(m, IFLA_IPVLAN_MODE, &info->ipvlan_mode); + (void) sd_netlink_message_read_u16(m, IFLA_IPVLAN_FLAGS, &info->ipvlan_flags); + } + + (void) sd_netlink_message_exit_container(m); + (void) sd_netlink_message_exit_container(m); + + return 0; +} + +static int decode_link(sd_netlink_message *m, LinkInfo *info, char **patterns, bool matched_patterns[]) { + _cleanup_strv_free_ char **altnames = NULL; + const char *name, *qdisc; + int ifindex, r; + uint16_t type; + + assert(m); + assert(info); + + r = sd_netlink_message_get_type(m, &type); + if (r < 0) + return r; + + if (type != RTM_NEWLINK) + return 0; + + r = sd_rtnl_message_link_get_ifindex(m, &ifindex); + if (r < 0) + return r; + + r = sd_netlink_message_read_string(m, IFLA_IFNAME, &name); + if (r < 0) + return r; + + r = sd_netlink_message_read_strv(m, IFLA_PROP_LIST, IFLA_ALT_IFNAME, &altnames); + if (r < 0 && r != -ENODATA) + return r; + + if (patterns) { + char str[DECIMAL_STR_MAX(int)]; + size_t pos; + + assert(matched_patterns); + + xsprintf(str, "%i", ifindex); + if (!strv_fnmatch_full(patterns, str, 0, &pos) && + !strv_fnmatch_full(patterns, name, 0, &pos)) { + bool match = false; + + STRV_FOREACH(p, altnames) + if (strv_fnmatch_full(patterns, *p, 0, &pos)) { + match = true; + break; + } + if (!match) + return 0; + } + + matched_patterns[pos] = true; + } + + r = sd_rtnl_message_link_get_type(m, &info->iftype); + if (r < 0) + return r; + + strscpy(info->name, sizeof info->name, name); + info->ifindex = ifindex; + info->alternative_names = TAKE_PTR(altnames); + + info->has_hw_address = + netlink_message_read_hw_addr(m, IFLA_ADDRESS, &info->hw_address) >= 0 && + info->hw_address.length > 0; + + info->has_permanent_hw_address = + (netlink_message_read_hw_addr(m, IFLA_PERM_ADDRESS, &info->permanent_hw_address) >= 0 || + ethtool_get_permanent_hw_addr(NULL, info->name, &info->permanent_hw_address) >= 0) && + !hw_addr_is_null(&info->permanent_hw_address) && + !hw_addr_equal(&info->permanent_hw_address, &info->hw_address); + + (void) sd_netlink_message_read_u32(m, IFLA_MTU, &info->mtu); + (void) sd_netlink_message_read_u32(m, IFLA_MIN_MTU, &info->min_mtu); + (void) sd_netlink_message_read_u32(m, IFLA_MAX_MTU, &info->max_mtu); + + info->has_rx_queues = + sd_netlink_message_read_u32(m, IFLA_NUM_RX_QUEUES, &info->rx_queues) >= 0 && + info->rx_queues > 0; + + info->has_tx_queues = + sd_netlink_message_read_u32(m, IFLA_NUM_TX_QUEUES, &info->tx_queues) >= 0 && + info->tx_queues > 0; + + if (sd_netlink_message_read(m, IFLA_STATS64, sizeof info->stats64, &info->stats64) >= 0) + info->has_stats64 = true; + else if (sd_netlink_message_read(m, IFLA_STATS, sizeof info->stats, &info->stats) >= 0) + info->has_stats = true; + + r = sd_netlink_message_read_string(m, IFLA_QDISC, &qdisc); + if (r >= 0) { + info->qdisc = strdup(qdisc); + if (!info->qdisc) + return log_oom(); + } + + (void) sd_netlink_message_read_u32(m, IFLA_MASTER, &info->master); + + r = sd_netlink_message_enter_container(m, IFLA_AF_SPEC); + if (r >= 0) { + r = sd_netlink_message_enter_container(m, AF_INET6); + if (r >= 0) { + r = sd_netlink_message_read_u8(m, IFLA_INET6_ADDR_GEN_MODE, &info->addr_gen_mode); + if (r >= 0 && IN_SET(info->addr_gen_mode, + IN6_ADDR_GEN_MODE_EUI64, + IN6_ADDR_GEN_MODE_NONE, + IN6_ADDR_GEN_MODE_STABLE_PRIVACY, + IN6_ADDR_GEN_MODE_RANDOM)) + info->has_ipv6_address_generation_mode = true; + + (void) sd_netlink_message_exit_container(m); + } + (void) sd_netlink_message_exit_container(m); + } + + /* fill kind info */ + (void) decode_netdev(m, info); + + return 1; +} + +static int link_get_property( + sd_bus *bus, + const LinkInfo *link, + sd_bus_error *error, + sd_bus_message **reply, + const char *iface, + const char *propname) { + + char ifindex_str[DECIMAL_STR_MAX(int)]; + _cleanup_free_ char *path = NULL; + int r; + + xsprintf(ifindex_str, "%i", link->ifindex); + + r = sd_bus_path_encode("/org/freedesktop/network1/link", ifindex_str, &path); + if (r < 0) + return r; + + return sd_bus_call_method( + bus, + "org.freedesktop.network1", + path, + "org.freedesktop.DBus.Properties", + "Get", + error, + reply, + "ss", + iface, + propname); +} + +static int acquire_link_bitrates(sd_bus *bus, LinkInfo *link) { + _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; + _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; + int r; + + r = link_get_property(bus, link, &error, &reply, "org.freedesktop.network1.Link", "BitRates"); + if (r < 0) { + bool quiet = sd_bus_error_has_names(&error, SD_BUS_ERROR_UNKNOWN_PROPERTY, + BUS_ERROR_SPEED_METER_INACTIVE); + + return log_full_errno(quiet ? LOG_DEBUG : LOG_WARNING, + r, "Failed to query link bit rates: %s", bus_error_message(&error, r)); + } + + r = sd_bus_message_enter_container(reply, 'v', "(tt)"); + if (r < 0) + return bus_log_parse_error(r); + + r = sd_bus_message_read(reply, "(tt)", &link->tx_bitrate, &link->rx_bitrate); + if (r < 0) + return bus_log_parse_error(r); + + r = sd_bus_message_exit_container(reply); + if (r < 0) + return bus_log_parse_error(r); + + link->has_bitrates = link->tx_bitrate != UINT64_MAX && link->rx_bitrate != UINT64_MAX; + + return 0; +} + +static void acquire_ether_link_info(int *fd, LinkInfo *link) { + if (ethtool_get_link_info(fd, link->name, + &link->autonegotiation, + &link->speed, + &link->duplex, + &link->port) >= 0) + link->has_ethtool_link_info = true; +} + +static void acquire_wlan_link_info(LinkInfo *link) { + _cleanup_(sd_netlink_unrefp) sd_netlink *genl = NULL; + const char *type = NULL; + int r, k = 0; + + if (link->sd_device) + (void) sd_device_get_devtype(link->sd_device, &type); + if (!streq_ptr(type, "wlan")) + return; + + r = sd_genl_socket_open(&genl); + if (r < 0) { + log_debug_errno(r, "Failed to open generic netlink socket: %m"); + return; + } + + (void) sd_netlink_increase_rxbuf(genl, RCVBUF_SIZE); + + r = wifi_get_interface(genl, link->ifindex, &link->wlan_iftype, &link->ssid); + if (r < 0) + log_debug_errno(r, "%s: failed to query ssid: %m", link->name); + + if (link->wlan_iftype == NL80211_IFTYPE_STATION) { + k = wifi_get_station(genl, link->ifindex, &link->bssid); + if (k < 0) + log_debug_errno(k, "%s: failed to query bssid: %m", link->name); + } + + link->has_wlan_link_info = r > 0 || k > 0; +} + +static int acquire_link_info(sd_bus *bus, sd_netlink *rtnl, char **patterns, LinkInfo **ret) { + _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL; + _cleanup_(link_info_array_freep) LinkInfo *links = NULL; + _cleanup_close_ int fd = -1; + size_t c = 0; + int r; + + assert(rtnl); + assert(ret); + + r = sd_rtnl_message_new_link(rtnl, &req, RTM_GETLINK, 0); + if (r < 0) + return rtnl_log_create_error(r); + + r = sd_netlink_message_set_request_dump(req, true); + if (r < 0) + return rtnl_log_create_error(r); + + r = sd_netlink_call(rtnl, req, 0, &reply); + if (r < 0) + return log_error_errno(r, "Failed to enumerate links: %m"); + + _cleanup_free_ bool *matched_patterns = NULL; + if (patterns) { + matched_patterns = new0(bool, strv_length(patterns)); + if (!matched_patterns) + return log_oom(); + } + + for (sd_netlink_message *i = reply; i; i = sd_netlink_message_next(i)) { + if (!GREEDY_REALLOC0(links, c + 2)) /* We keep one trailing one as marker */ + return -ENOMEM; + + r = decode_link(i, links + c, patterns, matched_patterns); + if (r < 0) + return r; + if (r == 0) + continue; + + links[c].needs_freeing = true; + + (void) sd_device_new_from_ifindex(&links[c].sd_device, links[c].ifindex); + + acquire_ether_link_info(&fd, &links[c]); + acquire_wlan_link_info(&links[c]); + + c++; + } + + /* Look if we matched all our arguments that are not globs. It + * is OK for a glob to match nothing, but not for an exact argument. */ + for (size_t pos = 0; pos < strv_length(patterns); pos++) { + if (matched_patterns[pos]) + continue; + + if (string_is_glob(patterns[pos])) + log_debug("Pattern \"%s\" doesn't match any interface, ignoring.", + patterns[pos]); + else + return log_error_errno(SYNTHETIC_ERRNO(ENODEV), + "Interface \"%s\" not found.", patterns[pos]); + } + + typesafe_qsort(links, c, link_info_compare); + + if (bus) + for (size_t j = 0; j < c; j++) + (void) acquire_link_bitrates(bus, links + j); + + *ret = TAKE_PTR(links); + + if (patterns && c == 0) + log_warning("No interfaces matched."); + + return (int) c; +} + +static int list_links(int argc, char *argv[], void *userdata) { + sd_bus *bus = ASSERT_PTR(userdata); + _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL; + _cleanup_(link_info_array_freep) LinkInfo *links = NULL; + _cleanup_(table_unrefp) Table *table = NULL; + TableCell *cell; + int c, r; + + if (arg_json_format_flags != JSON_FORMAT_OFF) { + if (arg_all || argc <= 1) + return dump_manager_description(bus); + else + return dump_link_description(bus, strv_skip(argv, 1)); + } + + r = sd_netlink_open(&rtnl); + if (r < 0) + return log_error_errno(r, "Failed to connect to netlink: %m"); + + c = acquire_link_info(NULL, rtnl, argc > 1 ? argv + 1 : NULL, &links); + if (c < 0) + return c; + + pager_open(arg_pager_flags); + + table = table_new("idx", "link", "type", "operational", "setup"); + if (!table) + return log_oom(); + + if (arg_full) + table_set_width(table, 0); + + table_set_header(table, arg_legend); + table_set_ersatz_string(table, TABLE_ERSATZ_DASH); + + assert_se(cell = table_get_cell(table, 0, 0)); + (void) table_set_minimum_width(table, cell, 3); + (void) table_set_weight(table, cell, 0); + (void) table_set_ellipsize_percent(table, cell, 100); + (void) table_set_align_percent(table, cell, 100); + + assert_se(cell = table_get_cell(table, 0, 1)); + (void) table_set_ellipsize_percent(table, cell, 100); + + for (int i = 0; i < c; i++) { + _cleanup_free_ char *setup_state = NULL, *operational_state = NULL; + const char *on_color_operational, *on_color_setup; + _cleanup_free_ char *t = NULL; + + (void) sd_network_link_get_operational_state(links[i].ifindex, &operational_state); + operational_state_to_color(links[i].name, operational_state, &on_color_operational, NULL); + + (void) sd_network_link_get_setup_state(links[i].ifindex, &setup_state); + setup_state_to_color(setup_state, &on_color_setup, NULL); + + r = net_get_type_string(links[i].sd_device, links[i].iftype, &t); + if (r == -ENOMEM) + return log_oom(); + + r = table_add_many(table, + TABLE_INT, links[i].ifindex, + TABLE_STRING, links[i].name, + TABLE_STRING, t, + TABLE_STRING, operational_state, + TABLE_SET_COLOR, on_color_operational, + TABLE_STRING, setup_state ?: "unmanaged", + TABLE_SET_COLOR, on_color_setup); + if (r < 0) + return table_log_add_error(r); + } + + r = table_print(table, NULL); + if (r < 0) + return table_log_print_error(r); + + if (arg_legend) + printf("\n%i links listed.\n", c); + + return 0; +} + +/* IEEE Organizationally Unique Identifier vendor string */ +static int ieee_oui(sd_hwdb *hwdb, const struct ether_addr *mac, char **ret) { + const char *description; + char modalias[STRLEN("OUI:XXYYXXYYXXYY") + 1], *desc; + int r; + + assert(ret); + + if (!hwdb) + return -EINVAL; + + if (!mac) + return -EINVAL; + + /* skip commonly misused 00:00:00 (Xerox) prefix */ + if (memcmp(mac, "\0\0\0", 3) == 0) + return -EINVAL; + + xsprintf(modalias, "OUI:" ETHER_ADDR_FORMAT_STR, + ETHER_ADDR_FORMAT_VAL(*mac)); + + r = sd_hwdb_get(hwdb, modalias, "ID_OUI_FROM_DATABASE", &description); + if (r < 0) + return r; + + desc = strdup(description); + if (!desc) + return -ENOMEM; + + *ret = desc; + + return 0; +} + +static int get_gateway_description( + sd_netlink *rtnl, + sd_hwdb *hwdb, + int ifindex, + int family, + union in_addr_union *gateway, + char **gateway_description) { + _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL; + int r; + + assert(rtnl); + assert(ifindex >= 0); + assert(IN_SET(family, AF_INET, AF_INET6)); + assert(gateway); + assert(gateway_description); + + r = sd_rtnl_message_new_neigh(rtnl, &req, RTM_GETNEIGH, ifindex, family); + if (r < 0) + return r; + + r = sd_netlink_message_set_request_dump(req, true); + if (r < 0) + return r; + + r = sd_netlink_call(rtnl, req, 0, &reply); + if (r < 0) + return r; + + for (sd_netlink_message *m = reply; m; m = sd_netlink_message_next(m)) { + union in_addr_union gw = IN_ADDR_NULL; + struct ether_addr mac = ETHER_ADDR_NULL; + uint16_t type; + int ifi, fam; + + r = sd_netlink_message_get_errno(m); + if (r < 0) { + log_error_errno(r, "got error: %m"); + continue; + } + + r = sd_netlink_message_get_type(m, &type); + if (r < 0) { + log_error_errno(r, "could not get type: %m"); + continue; + } + + if (type != RTM_NEWNEIGH) { + log_error("type is not RTM_NEWNEIGH"); + continue; + } + + r = sd_rtnl_message_neigh_get_family(m, &fam); + if (r < 0) { + log_error_errno(r, "could not get family: %m"); + continue; + } + + if (fam != family) { + log_error("family is not correct"); + continue; + } + + r = sd_rtnl_message_neigh_get_ifindex(m, &ifi); + if (r < 0) { + log_error_errno(r, "could not get ifindex: %m"); + continue; + } + + if (ifindex > 0 && ifi != ifindex) + continue; + + switch (fam) { + case AF_INET: + r = sd_netlink_message_read_in_addr(m, NDA_DST, &gw.in); + if (r < 0) + continue; + + break; + case AF_INET6: + r = sd_netlink_message_read_in6_addr(m, NDA_DST, &gw.in6); + if (r < 0) + continue; + + break; + default: + continue; + } + + if (!in_addr_equal(fam, &gw, gateway)) + continue; + + r = sd_netlink_message_read(m, NDA_LLADDR, sizeof(mac), &mac); + if (r < 0) + continue; + + r = ieee_oui(hwdb, &mac, gateway_description); + if (r < 0) + continue; + + return 0; + } + + return -ENODATA; +} + +static int dump_list(Table *table, const char *prefix, char * const *l) { + int r; + + if (strv_isempty(l)) + return 0; + + r = table_add_many(table, + TABLE_EMPTY, + TABLE_STRING, prefix, + TABLE_STRV, l); + if (r < 0) + return table_log_add_error(r); + + return 0; +} + +static int dump_gateways( + sd_netlink *rtnl, + sd_hwdb *hwdb, + Table *table, + int ifindex) { + _cleanup_free_ struct local_address *local = NULL; + _cleanup_strv_free_ char **buf = NULL; + int r, n; + + assert(rtnl); + assert(table); + + n = local_gateways(rtnl, ifindex, AF_UNSPEC, &local); + if (n <= 0) + return n; + + for (int i = 0; i < n; i++) { + _cleanup_free_ char *description = NULL; + + r = get_gateway_description(rtnl, hwdb, local[i].ifindex, local[i].family, &local[i].address, &description); + if (r < 0) + log_debug_errno(r, "Could not get description of gateway, ignoring: %m"); + + /* Show interface name for the entry if we show entries for all interfaces */ + r = strv_extendf(&buf, "%s%s%s%s%s%s", + IN_ADDR_TO_STRING(local[i].family, &local[i].address), + description ? " (" : "", + strempty(description), + description ? ")" : "", + ifindex <= 0 ? " on " : "", + ifindex <= 0 ? FORMAT_IFNAME_FULL(local[i].ifindex, FORMAT_IFNAME_IFINDEX_WITH_PERCENT) : ""); + if (r < 0) + return log_oom(); + } + + return dump_list(table, "Gateway:", buf); +} + +static int dump_addresses( + sd_netlink *rtnl, + sd_dhcp_lease *lease, + Table *table, + int ifindex) { + + _cleanup_free_ struct local_address *local = NULL; + _cleanup_strv_free_ char **buf = NULL; + struct in_addr dhcp4_address = {}; + int r, n; + + assert(rtnl); + assert(table); + + n = local_addresses(rtnl, ifindex, AF_UNSPEC, &local); + if (n <= 0) + return n; + + if (lease) + (void) sd_dhcp_lease_get_address(lease, &dhcp4_address); + + for (int i = 0; i < n; i++) { + struct in_addr server_address; + bool dhcp4 = false; + + if (local[i].family == AF_INET && in4_addr_equal(&local[i].address.in, &dhcp4_address)) + dhcp4 = sd_dhcp_lease_get_server_identifier(lease, &server_address) >= 0; + + r = strv_extendf(&buf, "%s%s%s%s%s%s", + IN_ADDR_TO_STRING(local[i].family, &local[i].address), + dhcp4 ? " (DHCP4 via " : "", + dhcp4 ? IN4_ADDR_TO_STRING(&server_address) : "", + dhcp4 ? ")" : "", + ifindex <= 0 ? " on " : "", + ifindex <= 0 ? FORMAT_IFNAME_FULL(local[i].ifindex, FORMAT_IFNAME_IFINDEX_WITH_PERCENT) : ""); + if (r < 0) + return log_oom(); + } + + return dump_list(table, "Address:", buf); +} + +static int dump_address_labels(sd_netlink *rtnl) { + _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL; + _cleanup_(table_unrefp) Table *table = NULL; + TableCell *cell; + int r; + + assert(rtnl); + + r = sd_rtnl_message_new_addrlabel(rtnl, &req, RTM_GETADDRLABEL, 0, AF_INET6); + if (r < 0) + return log_error_errno(r, "Could not allocate RTM_GETADDRLABEL message: %m"); + + r = sd_netlink_message_set_request_dump(req, true); + if (r < 0) + return r; + + r = sd_netlink_call(rtnl, req, 0, &reply); + if (r < 0) + return r; + + table = table_new("label", "prefix/prefixlen"); + if (!table) + return log_oom(); + + if (arg_full) + table_set_width(table, 0); + + r = table_set_sort(table, (size_t) 0); + if (r < 0) + return r; + + assert_se(cell = table_get_cell(table, 0, 0)); + (void) table_set_align_percent(table, cell, 100); + (void) table_set_ellipsize_percent(table, cell, 100); + + assert_se(cell = table_get_cell(table, 0, 1)); + (void) table_set_align_percent(table, cell, 100); + + for (sd_netlink_message *m = reply; m; m = sd_netlink_message_next(m)) { + struct in6_addr prefix; + uint8_t prefixlen; + uint32_t label; + + r = sd_netlink_message_get_errno(m); + if (r < 0) { + log_error_errno(r, "got error: %m"); + continue; + } + + r = sd_netlink_message_read_u32(m, IFAL_LABEL, &label); + if (r < 0 && r != -ENODATA) { + log_error_errno(r, "Could not read IFAL_LABEL, ignoring: %m"); + continue; + } + + r = sd_netlink_message_read_in6_addr(m, IFAL_ADDRESS, &prefix); + if (r < 0) + continue; + + r = sd_rtnl_message_addrlabel_get_prefixlen(m, &prefixlen); + if (r < 0) + continue; + + r = table_add_cell(table, NULL, TABLE_UINT32, &label); + if (r < 0) + return table_log_add_error(r); + + r = table_add_cell_stringf(table, NULL, "%s/%u", IN6_ADDR_TO_STRING(&prefix), prefixlen); + if (r < 0) + return table_log_add_error(r); + } + + r = table_print(table, NULL); + if (r < 0) + return table_log_print_error(r); + + return 0; +} + +static int list_address_labels(int argc, char *argv[], void *userdata) { + _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL; + int r; + + r = sd_netlink_open(&rtnl); + if (r < 0) + return log_error_errno(r, "Failed to connect to netlink: %m"); + + dump_address_labels(rtnl); + + return 0; +} + +static int open_lldp_neighbors(int ifindex, FILE **ret) { + char p[STRLEN("/run/systemd/netif/lldp/") + DECIMAL_STR_MAX(int)]; + FILE *f; + + xsprintf(p, "/run/systemd/netif/lldp/%i", ifindex); + f = fopen(p, "re"); + if (!f) + return -errno; + + *ret = f; + return 0; +} + +static int next_lldp_neighbor(FILE *f, sd_lldp_neighbor **ret) { + _cleanup_free_ void *raw = NULL; + size_t l; + le64_t u; + int r; + + assert(f); + assert(ret); + + l = fread(&u, 1, sizeof(u), f); + if (l == 0 && feof(f)) + return 0; + if (l != sizeof(u)) + return -EBADMSG; + + /* each LLDP packet is at most MTU size, but let's allow up to 4KiB just in case */ + if (le64toh(u) >= 4096) + return -EBADMSG; + + raw = new(uint8_t, le64toh(u)); + if (!raw) + return -ENOMEM; + + if (fread(raw, 1, le64toh(u), f) != le64toh(u)) + return -EBADMSG; + + r = sd_lldp_neighbor_from_raw(ret, raw, le64toh(u)); + if (r < 0) + return r; + + return 1; +} + +static int dump_lldp_neighbors(Table *table, const char *prefix, int ifindex) { + _cleanup_strv_free_ char **buf = NULL; + _cleanup_fclose_ FILE *f = NULL; + int r; + + assert(table); + assert(prefix); + assert(ifindex > 0); + + r = open_lldp_neighbors(ifindex, &f); + if (r == -ENOENT) + return 0; + if (r < 0) + return r; + + for (;;) { + const char *system_name = NULL, *port_id = NULL, *port_description = NULL; + _cleanup_(sd_lldp_neighbor_unrefp) sd_lldp_neighbor *n = NULL; + + r = next_lldp_neighbor(f, &n); + if (r < 0) + return r; + if (r == 0) + break; + + (void) sd_lldp_neighbor_get_system_name(n, &system_name); + (void) sd_lldp_neighbor_get_port_id_as_string(n, &port_id); + (void) sd_lldp_neighbor_get_port_description(n, &port_description); + + r = strv_extendf(&buf, "%s on port %s%s%s%s", + strna(system_name), + strna(port_id), + isempty(port_description) ? "" : " (", + strempty(port_description), + isempty(port_description) ? "" : ")"); + if (r < 0) + return log_oom(); + } + + return dump_list(table, prefix, buf); +} + +static int dump_dhcp_leases(Table *table, const char *prefix, sd_bus *bus, const LinkInfo *link) { + _cleanup_strv_free_ char **buf = NULL; + _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; + _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; + int r; + + r = link_get_property(bus, link, &error, &reply, "org.freedesktop.network1.DHCPServer", "Leases"); + if (r < 0) { + bool quiet = sd_bus_error_has_name(&error, SD_BUS_ERROR_UNKNOWN_PROPERTY); + + log_full_errno(quiet ? LOG_DEBUG : LOG_WARNING, + r, "Failed to query link DHCP leases: %s", bus_error_message(&error, r)); + return 0; + } + + r = sd_bus_message_enter_container(reply, 'v', "a(uayayayayt)"); + if (r < 0) + return bus_log_parse_error(r); + + r = sd_bus_message_enter_container(reply, 'a', "(uayayayayt)"); + if (r < 0) + return bus_log_parse_error(r); + + while ((r = sd_bus_message_enter_container(reply, 'r', "uayayayayt")) > 0) { + _cleanup_free_ char *id = NULL, *ip = NULL; + const void *client_id, *addr, *gtw, *hwaddr; + size_t client_id_sz, sz; + uint64_t expiration; + uint32_t family; + + r = sd_bus_message_read(reply, "u", &family); + if (r < 0) + return bus_log_parse_error(r); + + r = sd_bus_message_read_array(reply, 'y', &client_id, &client_id_sz); + if (r < 0) + return bus_log_parse_error(r); + + r = sd_bus_message_read_array(reply, 'y', &addr, &sz); + if (r < 0 || sz != 4) + return bus_log_parse_error(r); + + r = sd_bus_message_read_array(reply, 'y', >w, &sz); + if (r < 0 || sz != 4) + return bus_log_parse_error(r); + + r = sd_bus_message_read_array(reply, 'y', &hwaddr, &sz); + if (r < 0) + return bus_log_parse_error(r); + + r = sd_bus_message_read_basic(reply, 't', &expiration); + if (r < 0) + return bus_log_parse_error(r); + + r = sd_dhcp_client_id_to_string(client_id, client_id_sz, &id); + if (r < 0) + return bus_log_parse_error(r); + + r = in_addr_to_string(family, addr, &ip); + if (r < 0) + return bus_log_parse_error(r); + + r = strv_extendf(&buf, "%s (to %s)", ip, id); + if (r < 0) + return log_oom(); + + r = sd_bus_message_exit_container(reply); + if (r < 0) + return bus_log_parse_error(r); + } + if (r < 0) + return bus_log_parse_error(r); + + r = sd_bus_message_exit_container(reply); + if (r < 0) + return bus_log_parse_error(r); + + r = sd_bus_message_exit_container(reply); + if (r < 0) + return bus_log_parse_error(r); + + if (strv_isempty(buf)) { + r = strv_extendf(&buf, "none"); + if (r < 0) + return log_oom(); + } + + return dump_list(table, prefix, buf); +} + +static int dump_ifindexes(Table *table, const char *prefix, const int *ifindexes) { + int r; + + assert(prefix); + + if (!ifindexes || ifindexes[0] <= 0) + return 0; + + for (unsigned c = 0; ifindexes[c] > 0; c++) { + r = table_add_many(table, + TABLE_EMPTY, + TABLE_STRING, c == 0 ? prefix : "", + TABLE_IFINDEX, ifindexes[c]); + if (r < 0) + return table_log_add_error(r); + } + + return 0; +} + +#define DUMP_STATS_ONE(name, val_name) \ + r = table_add_many(table, \ + TABLE_EMPTY, \ + TABLE_STRING, name ":"); \ + if (r < 0) \ + return table_log_add_error(r); \ + r = table_add_cell(table, NULL, \ + info->has_stats64 ? TABLE_UINT64 : TABLE_UINT32, \ + info->has_stats64 ? (void*) &info->stats64.val_name : (void*) &info->stats.val_name); \ + if (r < 0) \ + return table_log_add_error(r); + +static int dump_statistics(Table *table, const LinkInfo *info) { + int r; + + if (!arg_stats) + return 0; + + if (!info->has_stats64 && !info->has_stats) + return 0; + + DUMP_STATS_ONE("Rx Packets", rx_packets); + DUMP_STATS_ONE("Tx Packets", tx_packets); + DUMP_STATS_ONE("Rx Bytes", rx_bytes); + DUMP_STATS_ONE("Tx Bytes", tx_bytes); + DUMP_STATS_ONE("Rx Errors", rx_errors); + DUMP_STATS_ONE("Tx Errors", tx_errors); + DUMP_STATS_ONE("Rx Dropped", rx_dropped); + DUMP_STATS_ONE("Tx Dropped", tx_dropped); + DUMP_STATS_ONE("Multicast Packets", multicast); + DUMP_STATS_ONE("Collisions", collisions); + + return 0; +} + +static int dump_hw_address(Table *table, sd_hwdb *hwdb, const char *field, const struct hw_addr_data *addr) { + _cleanup_free_ char *description = NULL; + int r; + + assert(table); + assert(field); + assert(addr); + + if (addr->length == ETH_ALEN) + (void) ieee_oui(hwdb, &addr->ether, &description); + + r = table_add_many(table, + TABLE_EMPTY, + TABLE_STRING, field); + if (r < 0) + return table_log_add_error(r); + + r = table_add_cell_stringf(table, NULL, "%s%s%s%s", + HW_ADDR_TO_STR(addr), + description ? " (" : "", + strempty(description), + description ? ")" : ""); + if (r < 0) + return table_log_add_error(r); + + return 0; +} + +static OutputFlags get_output_flags(void) { + return + arg_all * OUTPUT_SHOW_ALL | + (arg_full || !on_tty() || pager_have()) * OUTPUT_FULL_WIDTH | + colors_enabled() * OUTPUT_COLOR; +} + +static int show_logs(const LinkInfo *info) { + _cleanup_(sd_journal_closep) sd_journal *j = NULL; + int r; + + if (arg_lines == 0) + return 0; + + r = sd_journal_open(&j, SD_JOURNAL_LOCAL_ONLY); + if (r < 0) + return log_error_errno(r, "Failed to open journal: %m"); + + r = add_match_this_boot(j, NULL); + if (r < 0) + return log_error_errno(r, "Failed to add boot matches: %m"); + + if (info) { + char m1[STRLEN("_KERNEL_DEVICE=n") + DECIMAL_STR_MAX(int)]; + const char *m2, *m3; + + /* kernel */ + xsprintf(m1, "_KERNEL_DEVICE=n%i", info->ifindex); + /* networkd */ + m2 = strjoina("INTERFACE=", info->name); + /* udevd */ + m3 = strjoina("DEVICE=", info->name); + + (void)( + (r = sd_journal_add_match(j, m1, 0)) || + (r = sd_journal_add_disjunction(j)) || + (r = sd_journal_add_match(j, m2, 0)) || + (r = sd_journal_add_disjunction(j)) || + (r = sd_journal_add_match(j, m3, 0)) + ); + if (r < 0) + return log_error_errno(r, "Failed to add link matches: %m"); + } else { + r = add_matches_for_unit(j, "systemd-networkd.service"); + if (r < 0) + return log_error_errno(r, "Failed to add unit matches: %m"); + + r = add_matches_for_unit(j, "systemd-networkd-wait-online.service"); + if (r < 0) + return log_error_errno(r, "Failed to add unit matches: %m"); + } + + return show_journal( + stdout, + j, + OUTPUT_SHORT, + 0, + 0, + arg_lines, + get_output_flags() | OUTPUT_BEGIN_NEWLINE, + NULL); +} + +static int table_add_string_line(Table *table, const char *key, const char *value) { + int r; + + assert(table); + assert(key); + + if (isempty(value)) + return 0; + + r = table_add_many(table, + TABLE_EMPTY, + TABLE_STRING, key, + TABLE_STRING, value); + if (r < 0) + return table_log_add_error(r); + + return 0; +} + +static int link_status_one( + sd_bus *bus, + sd_netlink *rtnl, + sd_hwdb *hwdb, + const LinkInfo *info) { + + _cleanup_strv_free_ char **dns = NULL, **ntp = NULL, **sip = NULL, **search_domains = NULL, **route_domains = NULL; + _cleanup_free_ char *t = NULL, *network = NULL, *iaid = NULL, *duid = NULL, + *setup_state = NULL, *operational_state = NULL, *online_state = NULL, *activation_policy = NULL; + const char *driver = NULL, *path = NULL, *vendor = NULL, *model = NULL, *link = NULL, + *on_color_operational, *off_color_operational, *on_color_setup, *off_color_setup, *on_color_online; + _cleanup_free_ int *carrier_bound_to = NULL, *carrier_bound_by = NULL; + _cleanup_(sd_dhcp_lease_unrefp) sd_dhcp_lease *lease = NULL; + _cleanup_(table_unrefp) Table *table = NULL; + TableCell *cell; + int r; + + assert(rtnl); + assert(info); + + (void) sd_network_link_get_operational_state(info->ifindex, &operational_state); + operational_state_to_color(info->name, operational_state, &on_color_operational, &off_color_operational); + + (void) sd_network_link_get_online_state(info->ifindex, &online_state); + online_state_to_color(online_state, &on_color_online, NULL); + + (void) sd_network_link_get_setup_state(info->ifindex, &setup_state); + setup_state_to_color(setup_state, &on_color_setup, &off_color_setup); + + (void) sd_network_link_get_dns(info->ifindex, &dns); + (void) sd_network_link_get_search_domains(info->ifindex, &search_domains); + (void) sd_network_link_get_route_domains(info->ifindex, &route_domains); + (void) sd_network_link_get_ntp(info->ifindex, &ntp); + (void) sd_network_link_get_sip(info->ifindex, &sip); + (void) sd_network_link_get_network_file(info->ifindex, &network); + (void) sd_network_link_get_carrier_bound_to(info->ifindex, &carrier_bound_to); + (void) sd_network_link_get_carrier_bound_by(info->ifindex, &carrier_bound_by); + (void) sd_network_link_get_activation_policy(info->ifindex, &activation_policy); + + if (info->sd_device) { + (void) sd_device_get_property_value(info->sd_device, "ID_NET_LINK_FILE", &link); + (void) sd_device_get_property_value(info->sd_device, "ID_NET_DRIVER", &driver); + (void) sd_device_get_property_value(info->sd_device, "ID_PATH", &path); + + if (sd_device_get_property_value(info->sd_device, "ID_VENDOR_FROM_DATABASE", &vendor) < 0) + (void) sd_device_get_property_value(info->sd_device, "ID_VENDOR", &vendor); + + if (sd_device_get_property_value(info->sd_device, "ID_MODEL_FROM_DATABASE", &model) < 0) + (void) sd_device_get_property_value(info->sd_device, "ID_MODEL", &model); + } + + r = net_get_type_string(info->sd_device, info->iftype, &t); + if (r == -ENOMEM) + return log_oom(); + + char lease_file[STRLEN("/run/systemd/netif/leases/") + DECIMAL_STR_MAX(int)]; + xsprintf(lease_file, "/run/systemd/netif/leases/%i", info->ifindex); + + (void) dhcp_lease_load(&lease, lease_file); + + table = table_new("dot", "key", "value"); + if (!table) + return log_oom(); + + if (arg_full) + table_set_width(table, 0); + + assert_se(cell = table_get_cell(table, 0, 0)); + (void) table_set_ellipsize_percent(table, cell, 100); + + assert_se(cell = table_get_cell(table, 0, 1)); + (void) table_set_ellipsize_percent(table, cell, 100); + + table_set_header(table, false); + + /* First line: circle, ifindex, ifname. */ + r = table_add_many(table, + TABLE_STRING, special_glyph(SPECIAL_GLYPH_BLACK_CIRCLE), + TABLE_SET_COLOR, on_color_operational); + if (r < 0) + return table_log_add_error(r); + r = table_add_cell_stringf(table, &cell, "%i: %s", info->ifindex, info->name); + if (r < 0) + return table_log_add_error(r); + r = table_add_many(table, TABLE_EMPTY); + if (r < 0) + return table_log_add_error(r); + + (void) table_set_align_percent(table, cell, 0); + + /* unit files and basic states. */ + r = table_add_many(table, + TABLE_EMPTY, + TABLE_STRING, "Link File:", + TABLE_SET_ALIGN_PERCENT, 100, + TABLE_STRING, strna(link), + TABLE_EMPTY, + TABLE_STRING, "Network File:", + TABLE_STRING, strna(network), + TABLE_EMPTY, + TABLE_STRING, "State:"); + if (r < 0) + return table_log_add_error(r); + + r = table_add_cell_stringf(table, NULL, "%s%s%s (%s%s%s)", + on_color_operational, strna(operational_state), off_color_operational, + on_color_setup, setup_state ?: "unmanaged", off_color_setup); + if (r < 0) + return table_log_add_error(r); + + r = table_add_many(table, + TABLE_EMPTY, + TABLE_STRING, "Online state:", + TABLE_STRING, online_state ?: "unknown", + TABLE_SET_COLOR, on_color_online); + if (r < 0) + return table_log_add_error(r); + + r = table_add_string_line(table, "Type:", t); + if (r < 0) + return r; + + r = table_add_string_line(table, "Kind:", info->netdev_kind); + if (r < 0) + return r; + + r = table_add_string_line(table, "Path:", path); + if (r < 0) + return r; + + r = table_add_string_line(table, "Driver:", driver); + if (r < 0) + return r; + + r = table_add_string_line(table, "Vendor:", vendor); + if (r < 0) + return r; + + r = table_add_string_line(table, "Model:", model); + if (r < 0) + return r; + + strv_sort(info->alternative_names); + r = dump_list(table, "Alternative Names:", info->alternative_names); + if (r < 0) + return r; + + if (info->has_hw_address) { + r = dump_hw_address(table, hwdb, "Hardware Address:", &info->hw_address); + if (r < 0) + return r; + } + + if (info->has_permanent_hw_address) { + r = dump_hw_address(table, hwdb, "Permanent Hardware Address:", &info->permanent_hw_address); + if (r < 0) + return r; + } + + if (info->mtu > 0) { + char min_str[DECIMAL_STR_MAX(uint32_t)], max_str[DECIMAL_STR_MAX(uint32_t)]; + + xsprintf(min_str, "%" PRIu32, info->min_mtu); + xsprintf(max_str, "%" PRIu32, info->max_mtu); + + r = table_add_many(table, + TABLE_EMPTY, + TABLE_STRING, "MTU:"); + if (r < 0) + return table_log_add_error(r); + r = table_add_cell_stringf(table, NULL, "%" PRIu32 "%s%s%s%s%s%s%s", + info->mtu, + info->min_mtu > 0 || info->max_mtu > 0 ? " (" : "", + info->min_mtu > 0 ? "min: " : "", + info->min_mtu > 0 ? min_str : "", + info->min_mtu > 0 && info->max_mtu > 0 ? ", " : "", + info->max_mtu > 0 ? "max: " : "", + info->max_mtu > 0 ? max_str : "", + info->min_mtu > 0 || info->max_mtu > 0 ? ")" : ""); + if (r < 0) + return table_log_add_error(r); + } + + r = table_add_string_line(table, "QDisc:", info->qdisc); + if (r < 0) + return r; + + if (info->master > 0) { + r = table_add_many(table, + TABLE_EMPTY, + TABLE_STRING, "Master:", + TABLE_IFINDEX, info->master); + if (r < 0) + return table_log_add_error(r); + } + + if (info->has_ipv6_address_generation_mode) { + static const struct { + const char *mode; + } mode_table[] = { + { "eui64" }, + { "none" }, + { "stable-privacy" }, + { "random" }, + }; + + r = table_add_many(table, + TABLE_EMPTY, + TABLE_STRING, "IPv6 Address Generation Mode:", + TABLE_STRING, mode_table[info->addr_gen_mode]); + if (r < 0) + return table_log_add_error(r); + } + + if (streq_ptr(info->netdev_kind, "bridge")) { + r = table_add_many(table, + TABLE_EMPTY, + TABLE_STRING, "Forward Delay:", + TABLE_TIMESPAN_MSEC, jiffies_to_usec(info->forward_delay), + TABLE_EMPTY, + TABLE_STRING, "Hello Time:", + TABLE_TIMESPAN_MSEC, jiffies_to_usec(info->hello_time), + TABLE_EMPTY, + TABLE_STRING, "Max Age:", + TABLE_TIMESPAN_MSEC, jiffies_to_usec(info->max_age), + TABLE_EMPTY, + TABLE_STRING, "Ageing Time:", + TABLE_TIMESPAN_MSEC, jiffies_to_usec(info->ageing_time), + TABLE_EMPTY, + TABLE_STRING, "Priority:", + TABLE_UINT16, info->priority, + TABLE_EMPTY, + TABLE_STRING, "STP:", + TABLE_BOOLEAN, info->stp_state > 0, + TABLE_EMPTY, + TABLE_STRING, "Multicast IGMP Version:", + TABLE_UINT8, info->mcast_igmp_version, + TABLE_EMPTY, + TABLE_STRING, "Cost:", + TABLE_UINT32, info->cost); + if (r < 0) + return table_log_add_error(r); + + if (info->port_state <= BR_STATE_BLOCKING) { + r = table_add_many(table, + TABLE_EMPTY, + TABLE_STRING, "Port State:", + TABLE_STRING, bridge_state_to_string(info->port_state)); + if (r < 0) + return table_log_add_error(r); + } + + } else if (streq_ptr(info->netdev_kind, "bond")) { + r = table_add_many(table, + TABLE_EMPTY, + TABLE_STRING, "Mode:", + TABLE_STRING, bond_mode_to_string(info->mode), + TABLE_EMPTY, + TABLE_STRING, "Miimon:", + TABLE_TIMESPAN_MSEC, info->miimon * USEC_PER_MSEC, + TABLE_EMPTY, + TABLE_STRING, "Updelay:", + TABLE_TIMESPAN_MSEC, info->updelay * USEC_PER_MSEC, + TABLE_EMPTY, + TABLE_STRING, "Downdelay:", + TABLE_TIMESPAN_MSEC, info->downdelay * USEC_PER_MSEC); + if (r < 0) + return table_log_add_error(r); + + } else if (streq_ptr(info->netdev_kind, "vxlan")) { + char ttl[CONST_MAX(STRLEN("auto") + 1, DECIMAL_STR_MAX(uint8_t))]; + + if (info->vxlan_info.vni > 0) { + r = table_add_many(table, + TABLE_EMPTY, + TABLE_STRING, "VNI:", + TABLE_UINT32, info->vxlan_info.vni); + if (r < 0) + return table_log_add_error(r); + } + + if (IN_SET(info->vxlan_info.group_family, AF_INET, AF_INET6)) { + const char *p; + + r = in_addr_is_multicast(info->vxlan_info.group_family, &info->vxlan_info.group); + if (r <= 0) + p = "Remote:"; + else + p = "Group:"; + + r = table_add_many(table, + TABLE_EMPTY, + TABLE_STRING, p, + info->vxlan_info.group_family == AF_INET ? TABLE_IN_ADDR : TABLE_IN6_ADDR, + &info->vxlan_info.group); + if (r < 0) + return table_log_add_error(r); + } + + if (IN_SET(info->vxlan_info.local_family, AF_INET, AF_INET6)) { + r = table_add_many(table, + TABLE_EMPTY, + TABLE_STRING, "Local:", + info->vxlan_info.local_family == AF_INET ? TABLE_IN_ADDR : TABLE_IN6_ADDR, + &info->vxlan_info.local); + if (r < 0) + return table_log_add_error(r); + } + + if (info->vxlan_info.dest_port > 0) { + r = table_add_many(table, + TABLE_EMPTY, + TABLE_STRING, "Destination Port:", + TABLE_UINT16, be16toh(info->vxlan_info.dest_port)); + if (r < 0) + return table_log_add_error(r); + } + + if (info->vxlan_info.link > 0) { + r = table_add_many(table, + TABLE_EMPTY, + TABLE_STRING, "Underlying Device:", + TABLE_IFINDEX, info->vxlan_info.link); + if (r < 0) + return table_log_add_error(r); + } + + r = table_add_many(table, + TABLE_EMPTY, + TABLE_STRING, "Learning:", + TABLE_BOOLEAN, info->vxlan_info.learning); + if (r < 0) + return table_log_add_error(r); + + r = table_add_many(table, + TABLE_EMPTY, + TABLE_STRING, "RSC:", + TABLE_BOOLEAN, info->vxlan_info.rsc); + if (r < 0) + return table_log_add_error(r); + + r = table_add_many(table, + TABLE_EMPTY, + TABLE_STRING, "L3MISS:", + TABLE_BOOLEAN, info->vxlan_info.l3miss); + if (r < 0) + return table_log_add_error(r); + + r = table_add_many(table, + TABLE_EMPTY, + TABLE_STRING, "L2MISS:", + TABLE_BOOLEAN, info->vxlan_info.l2miss); + if (r < 0) + return table_log_add_error(r); + + if (info->vxlan_info.tos > 1) { + r = table_add_many(table, + TABLE_EMPTY, + TABLE_STRING, "TOS:", + TABLE_UINT8, info->vxlan_info.tos); + if (r < 0) + return table_log_add_error(r); + } + + if (info->vxlan_info.ttl > 0) + xsprintf(ttl, "%" PRIu8, info->vxlan_info.ttl); + else + strcpy(ttl, "auto"); + + r = table_add_many(table, + TABLE_EMPTY, + TABLE_STRING, "TTL:", + TABLE_STRING, ttl); + if (r < 0) + return table_log_add_error(r); + + } else if (streq_ptr(info->netdev_kind, "vlan") && info->vlan_id > 0) { + r = table_add_many(table, + TABLE_EMPTY, + TABLE_STRING, "VLan Id:", + TABLE_UINT16, info->vlan_id); + if (r < 0) + return table_log_add_error(r); + + } else if (STRPTR_IN_SET(info->netdev_kind, "ipip", "sit", "gre", "gretap", "erspan", "vti")) { + if (in_addr_is_set(AF_INET, &info->local)) { + r = table_add_many(table, + TABLE_EMPTY, + TABLE_STRING, "Local:", + TABLE_IN_ADDR, &info->local); + if (r < 0) + return table_log_add_error(r); + } + + if (in_addr_is_set(AF_INET, &info->remote)) { + r = table_add_many(table, + TABLE_EMPTY, + TABLE_STRING, "Remote:", + TABLE_IN_ADDR, &info->remote); + if (r < 0) + return table_log_add_error(r); + } + + } else if (STRPTR_IN_SET(info->netdev_kind, "ip6gre", "ip6gretap", "ip6erspan", "vti6")) { + if (in_addr_is_set(AF_INET6, &info->local)) { + r = table_add_many(table, + TABLE_EMPTY, + TABLE_STRING, "Local:", + TABLE_IN6_ADDR, &info->local); + if (r < 0) + return table_log_add_error(r); + } + + if (in_addr_is_set(AF_INET6, &info->remote)) { + r = table_add_many(table, + TABLE_EMPTY, + TABLE_STRING, "Remote:", + TABLE_IN6_ADDR, &info->remote); + if (r < 0) + return table_log_add_error(r); + } + + } else if (streq_ptr(info->netdev_kind, "geneve")) { + r = table_add_many(table, + TABLE_EMPTY, + TABLE_STRING, "VNI:", + TABLE_UINT32, info->vni); + if (r < 0) + return table_log_add_error(r); + + if (info->has_tunnel_ipv4 && in_addr_is_set(AF_INET, &info->remote)) { + r = table_add_many(table, + TABLE_EMPTY, + TABLE_STRING, "Remote:", + TABLE_IN_ADDR, &info->remote); + if (r < 0) + return table_log_add_error(r); + } else if (in_addr_is_set(AF_INET6, &info->remote)) { + r = table_add_many(table, + TABLE_EMPTY, + TABLE_STRING, "Remote:", + TABLE_IN6_ADDR, &info->remote); + if (r < 0) + return table_log_add_error(r); + } + + if (info->ttl > 0) { + r = table_add_many(table, + TABLE_EMPTY, + TABLE_STRING, "TTL:", + TABLE_UINT8, info->ttl); + if (r < 0) + return table_log_add_error(r); + } + + if (info->tos > 0) { + r = table_add_many(table, + TABLE_EMPTY, + TABLE_STRING, "TOS:", + TABLE_UINT8, info->tos); + if (r < 0) + return table_log_add_error(r); + } + + r = table_add_many(table, + TABLE_EMPTY, + TABLE_STRING, "Port:", + TABLE_UINT16, info->tunnel_port); + if (r < 0) + return table_log_add_error(r); + + r = table_add_many(table, + TABLE_EMPTY, + TABLE_STRING, "Inherit:", + TABLE_STRING, geneve_df_to_string(info->inherit)); + if (r < 0) + return table_log_add_error(r); + + if (info->df > 0) { + r = table_add_many(table, + TABLE_EMPTY, + TABLE_STRING, "IPDoNotFragment:", + TABLE_UINT8, info->df); + if (r < 0) + return table_log_add_error(r); + } + + r = table_add_many(table, + TABLE_EMPTY, + TABLE_STRING, "UDPChecksum:", + TABLE_BOOLEAN, info->csum); + if (r < 0) + return table_log_add_error(r); + + r = table_add_many(table, + TABLE_EMPTY, + TABLE_STRING, "UDP6ZeroChecksumTx:", + TABLE_BOOLEAN, info->csum6_tx); + if (r < 0) + return table_log_add_error(r); + + r = table_add_many(table, + TABLE_EMPTY, + TABLE_STRING, "UDP6ZeroChecksumRx:", + TABLE_BOOLEAN, info->csum6_rx); + if (r < 0) + return table_log_add_error(r); + + if (info->label > 0) { + r = table_add_many(table, + TABLE_EMPTY, + TABLE_STRING, "FlowLabel:", + TABLE_UINT32, info->label); + if (r < 0) + return table_log_add_error(r); + } + + } else if (STRPTR_IN_SET(info->netdev_kind, "macvlan", "macvtap")) { + r = table_add_many(table, + TABLE_EMPTY, + TABLE_STRING, "Mode:", + TABLE_STRING, macvlan_mode_to_string(info->macvlan_mode)); + if (r < 0) + return table_log_add_error(r); + + } else if (streq_ptr(info->netdev_kind, "ipvlan")) { + _cleanup_free_ char *p = NULL, *s = NULL; + + if (info->ipvlan_flags & IPVLAN_F_PRIVATE) + p = strdup("private"); + else if (info->ipvlan_flags & IPVLAN_F_VEPA) + p = strdup("vepa"); + else + p = strdup("bridge"); + if (!p) + log_oom(); + + s = strjoin(ipvlan_mode_to_string(info->ipvlan_mode), " (", p, ")"); + if (!s) + return log_oom(); + + r = table_add_many(table, + TABLE_EMPTY, + TABLE_STRING, "Mode:", + TABLE_STRING, s); + if (r < 0) + return table_log_add_error(r); + } + + if (info->has_wlan_link_info) { + _cleanup_free_ char *esc = NULL; + + r = table_add_many(table, + TABLE_EMPTY, + TABLE_STRING, "WiFi access point:"); + if (r < 0) + return table_log_add_error(r); + + if (info->ssid) + esc = cescape(info->ssid); + + r = table_add_cell_stringf(table, NULL, "%s (%s)", + strnull(esc), + ETHER_ADDR_TO_STR(&info->bssid)); + if (r < 0) + return table_log_add_error(r); + } + + if (info->has_bitrates) { + r = table_add_many(table, + TABLE_EMPTY, + TABLE_STRING, "Bit Rate (Tx/Rx):"); + if (r < 0) + return table_log_add_error(r); + r = table_add_cell_stringf(table, NULL, "%sbps/%sbps", + FORMAT_BYTES_FULL(info->tx_bitrate, 0), + FORMAT_BYTES_FULL(info->rx_bitrate, 0)); + if (r < 0) + return table_log_add_error(r); + } + + if (info->has_tx_queues || info->has_rx_queues) { + r = table_add_many(table, + TABLE_EMPTY, + TABLE_STRING, "Number of Queues (Tx/Rx):"); + if (r < 0) + return table_log_add_error(r); + r = table_add_cell_stringf(table, NULL, "%" PRIu32 "/%" PRIu32, info->tx_queues, info->rx_queues); + if (r < 0) + return table_log_add_error(r); + } + + if (info->has_ethtool_link_info) { + if (IN_SET(info->autonegotiation, AUTONEG_DISABLE, AUTONEG_ENABLE)) { + r = table_add_many(table, + TABLE_EMPTY, + TABLE_STRING, "Auto negotiation:", + TABLE_BOOLEAN, info->autonegotiation == AUTONEG_ENABLE); + if (r < 0) + return table_log_add_error(r); + } + + if (info->speed > 0 && info->speed != UINT64_MAX) { + r = table_add_many(table, + TABLE_EMPTY, + TABLE_STRING, "Speed:", + TABLE_BPS, info->speed); + if (r < 0) + return table_log_add_error(r); + } + + r = table_add_string_line(table, "Duplex:", duplex_to_string(info->duplex)); + if (r < 0) + return r; + + r = table_add_string_line(table, "Port:", port_to_string(info->port)); + if (r < 0) + return r; + } + + r = dump_addresses(rtnl, lease, table, info->ifindex); + if (r < 0) + return r; + r = dump_gateways(rtnl, hwdb, table, info->ifindex); + if (r < 0) + return r; + r = dump_list(table, "DNS:", dns); + if (r < 0) + return r; + r = dump_list(table, "Search Domains:", search_domains); + if (r < 0) + return r; + r = dump_list(table, "Route Domains:", route_domains); + if (r < 0) + return r; + r = dump_list(table, "NTP:", ntp); + if (r < 0) + return r; + r = dump_list(table, "SIP:", sip); + if (r < 0) + return r; + r = dump_ifindexes(table, "Carrier Bound To:", carrier_bound_to); + if (r < 0) + return r; + r = dump_ifindexes(table, "Carrier Bound By:", carrier_bound_by); + if (r < 0) + return r; + + r = table_add_string_line(table, "Activation Policy:", activation_policy); + if (r < 0) + return r; + + r = sd_network_link_get_required_for_online(info->ifindex); + if (r >= 0) { + r = table_add_many(table, + TABLE_EMPTY, + TABLE_STRING, "Required For Online:", + TABLE_BOOLEAN, r); + if (r < 0) + return table_log_add_error(r); + } + + if (lease) { + const void *client_id; + size_t client_id_len; + const char *tz; + + r = sd_dhcp_lease_get_timezone(lease, &tz); + if (r >= 0) { + r = table_add_many(table, + TABLE_EMPTY, + TABLE_STRING, "Time Zone:", + TABLE_STRING, tz); + if (r < 0) + return table_log_add_error(r); + } + + r = sd_dhcp_lease_get_client_id(lease, &client_id, &client_id_len); + if (r >= 0) { + _cleanup_free_ char *id = NULL; + + r = sd_dhcp_client_id_to_string(client_id, client_id_len, &id); + if (r >= 0) { + r = table_add_many(table, + TABLE_EMPTY, + TABLE_STRING, "DHCP4 Client ID:", + TABLE_STRING, id); + if (r < 0) + return table_log_add_error(r); + } + } + } + + r = sd_network_link_get_dhcp6_client_iaid_string(info->ifindex, &iaid); + if (r >= 0) { + r = table_add_many(table, + TABLE_EMPTY, + TABLE_STRING, "DHCP6 Client IAID:", + TABLE_STRING, iaid); + if (r < 0) + return table_log_add_error(r); + } + + r = sd_network_link_get_dhcp6_client_duid_string(info->ifindex, &duid); + if (r >= 0) { + r = table_add_many(table, + TABLE_EMPTY, + TABLE_STRING, "DHCP6 Client DUID:", + TABLE_STRING, duid); + if (r < 0) + return table_log_add_error(r); + } + + r = dump_lldp_neighbors(table, "Connected To:", info->ifindex); + if (r < 0) + return r; + + r = dump_dhcp_leases(table, "Offered DHCP leases:", bus, info); + if (r < 0) + return r; + + r = dump_statistics(table, info); + if (r < 0) + return r; + + r = table_print(table, NULL); + if (r < 0) + return table_log_print_error(r); + + return show_logs(info); +} + +static int system_status(sd_netlink *rtnl, sd_hwdb *hwdb) { + _cleanup_free_ char *operational_state = NULL, *online_state = NULL; + _cleanup_strv_free_ char **dns = NULL, **ntp = NULL, **search_domains = NULL, **route_domains = NULL; + const char *on_color_operational, *on_color_online; + _cleanup_(table_unrefp) Table *table = NULL; + TableCell *cell; + int r; + + assert(rtnl); + + (void) sd_network_get_operational_state(&operational_state); + operational_state_to_color(NULL, operational_state, &on_color_operational, NULL); + + (void) sd_network_get_online_state(&online_state); + online_state_to_color(online_state, &on_color_online, NULL); + + table = table_new("dot", "key", "value"); + if (!table) + return log_oom(); + + if (arg_full) + table_set_width(table, 0); + + assert_se(cell = table_get_cell(table, 0, 0)); + (void) table_set_ellipsize_percent(table, cell, 100); + + assert_se(cell = table_get_cell(table, 0, 1)); + (void) table_set_align_percent(table, cell, 100); + (void) table_set_ellipsize_percent(table, cell, 100); + + table_set_header(table, false); + + r = table_add_many(table, + TABLE_STRING, special_glyph(SPECIAL_GLYPH_BLACK_CIRCLE), + TABLE_SET_COLOR, on_color_operational, + TABLE_STRING, "State:", + TABLE_STRING, strna(operational_state), + TABLE_SET_COLOR, on_color_operational, + TABLE_EMPTY, + TABLE_STRING, "Online state:", + TABLE_STRING, online_state ?: "unknown", + TABLE_SET_COLOR, on_color_online); + if (r < 0) + return table_log_add_error(r); + + r = dump_addresses(rtnl, NULL, table, 0); + if (r < 0) + return r; + r = dump_gateways(rtnl, hwdb, table, 0); + if (r < 0) + return r; + + (void) sd_network_get_dns(&dns); + r = dump_list(table, "DNS:", dns); + if (r < 0) + return r; + + (void) sd_network_get_search_domains(&search_domains); + r = dump_list(table, "Search Domains:", search_domains); + if (r < 0) + return r; + + (void) sd_network_get_route_domains(&route_domains); + r = dump_list(table, "Route Domains:", route_domains); + if (r < 0) + return r; + + (void) sd_network_get_ntp(&ntp); + r = dump_list(table, "NTP:", ntp); + if (r < 0) + return r; + + r = table_print(table, NULL); + if (r < 0) + return table_log_print_error(r); + + return show_logs(NULL); +} + +static int link_status(int argc, char *argv[], void *userdata) { + sd_bus *bus = ASSERT_PTR(userdata); + _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL; + _cleanup_(sd_hwdb_unrefp) sd_hwdb *hwdb = NULL; + _cleanup_(link_info_array_freep) LinkInfo *links = NULL; + int r, c; + + if (arg_json_format_flags != JSON_FORMAT_OFF) { + if (arg_all || argc <= 1) + return dump_manager_description(bus); + else + return dump_link_description(bus, strv_skip(argv, 1)); + } + + pager_open(arg_pager_flags); + + r = sd_netlink_open(&rtnl); + if (r < 0) + return log_error_errno(r, "Failed to connect to netlink: %m"); + + r = sd_hwdb_new(&hwdb); + if (r < 0) + log_debug_errno(r, "Failed to open hardware database: %m"); + + if (arg_all) + c = acquire_link_info(bus, rtnl, NULL, &links); + else if (argc <= 1) + return system_status(rtnl, hwdb); + else + c = acquire_link_info(bus, rtnl, argv + 1, &links); + if (c < 0) + return c; + + for (int i = 0; i < c; i++) { + if (i > 0) + fputc('\n', stdout); + + link_status_one(bus, rtnl, hwdb, links + i); + } + + return 0; +} + +static char *lldp_capabilities_to_string(uint16_t x) { + static const char characters[] = { + 'o', 'p', 'b', 'w', 'r', 't', 'd', 'a', 'c', 's', 'm', + }; + char *ret; + unsigned i; + + ret = new(char, ELEMENTSOF(characters) + 1); + if (!ret) + return NULL; + + for (i = 0; i < ELEMENTSOF(characters); i++) + ret[i] = (x & (1U << i)) ? characters[i] : '.'; + + ret[i] = 0; + return ret; +} + +static void lldp_capabilities_legend(uint16_t x) { + unsigned cols = columns(); + static const char* const table[] = { + "o - Other", + "p - Repeater", + "b - Bridge", + "w - WLAN Access Point", + "r - Router", + "t - Telephone", + "d - DOCSIS cable device", + "a - Station", + "c - Customer VLAN", + "s - Service VLAN", + "m - Two-port MAC Relay (TPMR)", + }; + + if (x == 0) + return; + + printf("\nCapability Flags:\n"); + for (unsigned w = 0, i = 0; i < ELEMENTSOF(table); i++) + if (x & (1U << i) || arg_all) { + bool newline; + + newline = w + strlen(table[i]) + (w == 0 ? 0 : 2) > cols; + if (newline) + w = 0; + w += printf("%s%s%s", newline ? "\n" : "", w == 0 ? "" : "; ", table[i]); + } + puts(""); +} + +static int link_lldp_status(int argc, char *argv[], void *userdata) { + _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL; + _cleanup_(link_info_array_freep) LinkInfo *links = NULL; + _cleanup_(table_unrefp) Table *table = NULL; + int r, c, m = 0; + uint16_t all = 0; + TableCell *cell; + + r = sd_netlink_open(&rtnl); + if (r < 0) + return log_error_errno(r, "Failed to connect to netlink: %m"); + + c = acquire_link_info(NULL, rtnl, argc > 1 ? argv + 1 : NULL, &links); + if (c < 0) + return c; + + pager_open(arg_pager_flags); + + table = table_new("link", + "chassis-id", + "system-name", + "caps", + "port-id", + "port-description"); + if (!table) + return log_oom(); + + if (arg_full) + table_set_width(table, 0); + + table_set_header(table, arg_legend); + + assert_se(cell = table_get_cell(table, 0, 3)); + table_set_minimum_width(table, cell, 11); + table_set_ersatz_string(table, TABLE_ERSATZ_DASH); + + for (int i = 0; i < c; i++) { + _cleanup_fclose_ FILE *f = NULL; + + r = open_lldp_neighbors(links[i].ifindex, &f); + if (r == -ENOENT) + continue; + if (r < 0) { + log_warning_errno(r, "Failed to open LLDP data for %i, ignoring: %m", links[i].ifindex); + continue; + } + + for (;;) { + const char *chassis_id = NULL, *port_id = NULL, *system_name = NULL, *port_description = NULL; + _cleanup_(sd_lldp_neighbor_unrefp) sd_lldp_neighbor *n = NULL; + _cleanup_free_ char *capabilities = NULL; + uint16_t cc; + + r = next_lldp_neighbor(f, &n); + if (r < 0) { + log_warning_errno(r, "Failed to read neighbor data: %m"); + break; + } + if (r == 0) + break; + + (void) sd_lldp_neighbor_get_chassis_id_as_string(n, &chassis_id); + (void) sd_lldp_neighbor_get_port_id_as_string(n, &port_id); + (void) sd_lldp_neighbor_get_system_name(n, &system_name); + (void) sd_lldp_neighbor_get_port_description(n, &port_description); + + if (sd_lldp_neighbor_get_enabled_capabilities(n, &cc) >= 0) { + capabilities = lldp_capabilities_to_string(cc); + all |= cc; + } + + r = table_add_many(table, + TABLE_STRING, links[i].name, + TABLE_STRING, chassis_id, + TABLE_STRING, system_name, + TABLE_STRING, capabilities, + TABLE_STRING, port_id, + TABLE_STRING, port_description); + if (r < 0) + return table_log_add_error(r); + + m++; + } + } + + r = table_print(table, NULL); + if (r < 0) + return table_log_print_error(r); + + if (arg_legend) { + lldp_capabilities_legend(all); + printf("\n%i neighbors listed.\n", m); + } + + return 0; +} + +static int link_delete_send_message(sd_netlink *rtnl, int index) { + _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL; + int r; + + assert(rtnl); + + r = sd_rtnl_message_new_link(rtnl, &req, RTM_DELLINK, index); + if (r < 0) + return rtnl_log_create_error(r); + + r = sd_netlink_call(rtnl, req, 0, NULL); + if (r < 0) + return r; + + return 0; +} + +static int link_up_down_send_message(sd_netlink *rtnl, char *command, int index) { + _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL; + int r; + + assert(rtnl); + + r = sd_rtnl_message_new_link(rtnl, &req, RTM_SETLINK, index); + if (r < 0) + return rtnl_log_create_error(r); + + if (streq(command, "up")) + r = sd_rtnl_message_link_set_flags(req, IFF_UP, IFF_UP); + else + r = sd_rtnl_message_link_set_flags(req, 0, IFF_UP); + if (r < 0) + return log_error_errno(r, "Could not set link flags: %m"); + + r = sd_netlink_call(rtnl, req, 0, NULL); + if (r < 0) + return r; + + return 0; +} + +static int link_up_down(int argc, char *argv[], void *userdata) { + _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL; + _cleanup_set_free_ Set *indexes = NULL; + int index, r; + void *p; + + r = sd_netlink_open(&rtnl); + if (r < 0) + return log_error_errno(r, "Failed to connect to netlink: %m"); + + indexes = set_new(NULL); + if (!indexes) + return log_oom(); + + for (int i = 1; i < argc; i++) { + index = rtnl_resolve_interface_or_warn(&rtnl, argv[i]); + if (index < 0) + return index; + + r = set_put(indexes, INT_TO_PTR(index)); + if (r < 0) + return log_oom(); + } + + SET_FOREACH(p, indexes) { + index = PTR_TO_INT(p); + r = link_up_down_send_message(rtnl, argv[0], index); + if (r < 0) + return log_error_errno(r, "Failed to bring %s interface %s: %m", + argv[0], FORMAT_IFNAME_FULL(index, FORMAT_IFNAME_IFINDEX)); + } + + return r; +} + +static int link_delete(int argc, char *argv[], void *userdata) { + _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL; + _cleanup_set_free_ Set *indexes = NULL; + int index, r; + void *p; + + r = sd_netlink_open(&rtnl); + if (r < 0) + return log_error_errno(r, "Failed to connect to netlink: %m"); + + indexes = set_new(NULL); + if (!indexes) + return log_oom(); + + for (int i = 1; i < argc; i++) { + index = rtnl_resolve_interface_or_warn(&rtnl, argv[i]); + if (index < 0) + return index; + + r = set_put(indexes, INT_TO_PTR(index)); + if (r < 0) + return log_oom(); + } + + SET_FOREACH(p, indexes) { + index = PTR_TO_INT(p); + r = link_delete_send_message(rtnl, index); + if (r < 0) + return log_error_errno(r, "Failed to delete interface %s: %m", + FORMAT_IFNAME_FULL(index, FORMAT_IFNAME_IFINDEX)); + } + + return r; +} + +static int link_renew_one(sd_bus *bus, int index, const char *name) { + _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; + int r; + + r = bus_call_method(bus, bus_network_mgr, "RenewLink", &error, NULL, "i", index); + if (r < 0) + return log_error_errno(r, "Failed to renew dynamic configuration of interface %s: %s", + name, bus_error_message(&error, r)); + + return 0; +} + +static int link_renew(int argc, char *argv[], void *userdata) { + sd_bus *bus = ASSERT_PTR(userdata); + _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL; + int index, k = 0, r; + + for (int i = 1; i < argc; i++) { + index = rtnl_resolve_interface_or_warn(&rtnl, argv[i]); + if (index < 0) + return index; + + r = link_renew_one(bus, index, argv[i]); + if (r < 0 && k >= 0) + k = r; + } + + return k; +} + +static int link_force_renew_one(sd_bus *bus, int index, const char *name) { + _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; + int r; + + r = bus_call_method(bus, bus_network_mgr, "ForceRenewLink", &error, NULL, "i", index); + if (r < 0) + return log_error_errno(r, "Failed to force renew dynamic configuration of interface %s: %s", + name, bus_error_message(&error, r)); + + return 0; +} + +static int link_force_renew(int argc, char *argv[], void *userdata) { + sd_bus *bus = ASSERT_PTR(userdata); + _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL; + int k = 0, r; + + for (int i = 1; i < argc; i++) { + int index = rtnl_resolve_interface_or_warn(&rtnl, argv[i]); + if (index < 0) + return index; + + r = link_force_renew_one(bus, index, argv[i]); + if (r < 0 && k >= 0) + k = r; + } + + return k; +} + +static int verb_reload(int argc, char *argv[], void *userdata) { + sd_bus *bus = ASSERT_PTR(userdata); + _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; + int r; + + r = bus_call_method(bus, bus_network_mgr, "Reload", &error, NULL, NULL); + if (r < 0) + return log_error_errno(r, "Failed to reload network settings: %s", bus_error_message(&error, r)); + + return 0; +} + +static int verb_reconfigure(int argc, char *argv[], void *userdata) { + sd_bus *bus = ASSERT_PTR(userdata); + _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; + _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL; + _cleanup_set_free_ Set *indexes = NULL; + int index, r; + void *p; + + indexes = set_new(NULL); + if (!indexes) + return log_oom(); + + for (int i = 1; i < argc; i++) { + index = rtnl_resolve_interface_or_warn(&rtnl, argv[i]); + if (index < 0) + return index; + + r = set_put(indexes, INT_TO_PTR(index)); + if (r < 0) + return log_oom(); + } + + SET_FOREACH(p, indexes) { + index = PTR_TO_INT(p); + r = bus_call_method(bus, bus_network_mgr, "ReconfigureLink", &error, NULL, "i", index); + if (r < 0) + return log_error_errno(r, "Failed to reconfigure network interface %s: %s", + FORMAT_IFNAME_FULL(index, FORMAT_IFNAME_IFINDEX), + bus_error_message(&error, r)); + } + + return 0; +} + +static int help(void) { + _cleanup_free_ char *link = NULL; + int r; + + r = terminal_urlify_man("networkctl", "1", &link); + if (r < 0) + return log_oom(); + + printf("%s [OPTIONS...] COMMAND\n\n" + "%sQuery and control the networking subsystem.%s\n" + "\nCommands:\n" + " list [PATTERN...] List links\n" + " status [PATTERN...] Show link status\n" + " lldp [PATTERN...] Show LLDP neighbors\n" + " label Show current address label entries in the kernel\n" + " delete DEVICES... Delete virtual netdevs\n" + " up DEVICES... Bring devices up\n" + " down DEVICES... Bring devices down\n" + " renew DEVICES... Renew dynamic configurations\n" + " forcerenew DEVICES... Trigger DHCP reconfiguration of all connected clients\n" + " reconfigure DEVICES... Reconfigure interfaces\n" + " reload Reload .network and .netdev files\n" + "\nOptions:\n" + " -h --help Show this help\n" + " --version Show package version\n" + " --no-pager Do not pipe output into a pager\n" + " --no-legend Do not show the headers and footers\n" + " -a --all Show status for all links\n" + " -s --stats Show detailed link statistics\n" + " -l --full Do not ellipsize output\n" + " -n --lines=INTEGER Number of journal entries to show\n" + " --json=pretty|short|off\n" + " Generate JSON output\n" + "\nSee the %s for details.\n", + program_invocation_short_name, + ansi_highlight(), + ansi_normal(), + link); + + return 0; +} + +static int parse_argv(int argc, char *argv[]) { + + enum { + ARG_VERSION = 0x100, + ARG_NO_PAGER, + ARG_NO_LEGEND, + ARG_JSON, + }; + + static const struct option options[] = { + { "help", no_argument, NULL, 'h' }, + { "version", no_argument, NULL, ARG_VERSION }, + { "no-pager", no_argument, NULL, ARG_NO_PAGER }, + { "no-legend", no_argument, NULL, ARG_NO_LEGEND }, + { "all", no_argument, NULL, 'a' }, + { "stats", no_argument, NULL, 's' }, + { "full", no_argument, NULL, 'l' }, + { "lines", required_argument, NULL, 'n' }, + { "json", required_argument, NULL, ARG_JSON }, + {} + }; + + int c, r; + + assert(argc >= 0); + assert(argv); + + while ((c = getopt_long(argc, argv, "hasln:", options, NULL)) >= 0) { + + switch (c) { + + case 'h': + return help(); + + case ARG_VERSION: + return version(); + + case ARG_NO_PAGER: + arg_pager_flags |= PAGER_DISABLE; + break; + + case ARG_NO_LEGEND: + arg_legend = false; + break; + + case 'a': + arg_all = true; + break; + + case 's': + arg_stats = true; + break; + + case 'l': + arg_full = true; + break; + + case 'n': + if (safe_atou(optarg, &arg_lines) < 0) + return log_error_errno(SYNTHETIC_ERRNO(EINVAL), + "Failed to parse lines '%s'", optarg); + break; + + case ARG_JSON: + r = parse_json_argument(optarg, &arg_json_format_flags); + if (r <= 0) + return r; + break; + + case '?': + return -EINVAL; + + default: + assert_not_reached(); + } + } + + return 1; +} + +static int networkctl_main(sd_bus *bus, int argc, char *argv[]) { + static const Verb verbs[] = { + { "list", VERB_ANY, VERB_ANY, VERB_DEFAULT, list_links }, + { "status", VERB_ANY, VERB_ANY, 0, link_status }, + { "lldp", VERB_ANY, VERB_ANY, 0, link_lldp_status }, + { "label", 1, 1, 0, list_address_labels }, + { "delete", 2, VERB_ANY, 0, link_delete }, + { "up", 2, VERB_ANY, 0, link_up_down }, + { "down", 2, VERB_ANY, 0, link_up_down }, + { "renew", 2, VERB_ANY, 0, link_renew }, + { "forcerenew", 2, VERB_ANY, 0, link_force_renew }, + { "reconfigure", 2, VERB_ANY, 0, verb_reconfigure }, + { "reload", 1, 1, 0, verb_reload }, + {} + }; + + return dispatch_verb(argc, argv, verbs, bus); +} + +static int check_netns_match(sd_bus *bus) { + _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; + struct stat st; + uint64_t id; + int r; + + r = sd_bus_get_property_trivial( + bus, + "org.freedesktop.network1", + "/org/freedesktop/network1", + "org.freedesktop.network1.Manager", + "NamespaceId", + &error, + 't', + &id); + if (r < 0) { + log_debug_errno(r, "Failed to query network namespace of networkd, ignoring: %s", bus_error_message(&error, r)); + return 0; + } + if (id == 0) { + log_debug("systemd-networkd.service not running in a network namespace (?), skipping netns check."); + return 0; + } + + if (stat("/proc/self/ns/net", &st) < 0) + return log_error_errno(r, "Failed to determine our own network namespace ID: %m"); + + if (id != st.st_ino) + return log_error_errno(SYNTHETIC_ERRNO(EREMOTE), + "networkctl must be invoked in same network namespace as systemd-networkd.service."); + + return 0; +} + +static void warn_networkd_missing(void) { + + if (access("/run/systemd/netif/state", F_OK) >= 0) + return; + + fprintf(stderr, "WARNING: systemd-networkd is not running, output will be incomplete.\n\n"); +} + +static int run(int argc, char* argv[]) { + _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL; + int r; + + log_setup(); + + sigbus_install(); + + r = parse_argv(argc, argv); + if (r <= 0) + return r; + + r = sd_bus_open_system(&bus); + if (r < 0) + return log_error_errno(r, "Failed to connect system bus: %m"); + + r = check_netns_match(bus); + if (r < 0) + return r; + + warn_networkd_missing(); + + return networkctl_main(bus, argc, argv); +} + +DEFINE_MAIN_FUNCTION(run); |